ML071940454

Email - 07/11/07 - WCNOC to NRC (Medenciy to Jacobs) Concerning CR Fire CDF Value Clarification

ML071940454
Person / Time
Site:	Wolf Creek
Issue date:	07/11/2007
From:	Medenciy C Wolf Creek
To:	Christian Jacobs NRC/NRR/ADRO/DLR
References
Download: ML071940454 (2)

Text

Christian Jacobs - CR Fire' CDFVaueClarification. .. ...-Pa_

From: "Medenciy Charlie M" <chmeden@WCNOC.com>

To: "Christian Jacobs (E-mail)" <CJJ @nrc.gov>

Date: 7/11/2007 10:46:14 AM

Subject:

CR Fire CDF Value Clarification The value of 2.22E-6 reported in the ER for the fire re-analysis is correct, and that the CR fire CDF actually increased in the fire re-analysis from 1.43E-06 to 2.22E-06.

Original Message -----

From: Robert Palla [1]

Sent: Wednesday, July 11, 2007 8:27 AM To: Christian Jacobs Cc: bmrowca@islinc.com

Subject:

Fwd: RE: CR Fire CDF Value Clarification Chris - In addition to confirming that the IPEEE control room fire CDF reported in the ER was incorrect (should have been 1.43E-6 rather than 6.31 E-5), it would be a good idea to have WCNOC also confirm that the value of 2.22E-6 reported in the ER for the fire re-analysis is correct, and that the CR fire frequency actually increased in the fire re-analysis (the ER states that it decreased, but that statement appears incorrect given the correction to the IPEEE value). Bob

>>> Christian Jacobs 07/11/2007 8:41 AM >>>

Bob, See attached email from Charlie (Wolf Creek). He confirmed that they used the incorrect number, and that you and Bruce are correct in using the IPEEE number. I'm thinking I can just add the email to ADAMS and this will resolve the issue. I don't think I need to ask them to send this info under oath and affirmation since the 1.43 number is something that we can can reference from IPEEE. Do you agree?

Chris Christian Jacobs Environmental Project Manager Division of License Renewal U.S. Nuclear Regulatory Commission 301-415-3874 O-12D1 1 cjj @nrc.gov

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Subject:

CR Fire CDF Value Clarification Creation Date 7/11/2007 10:45:23 AM From: "Medenciy Charlie M" <chmeden@WCNOC.corn>

Created By: chmeden @WCNOC.com Recipients nrc.gov OWGWPO04.HQGWDOO1 CJJ (Christian Jacobs)

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